Shop Car Speakers by Size

SPEAKER SIZE GUIDE

Compare Car Speaker Sizes

Browse the most common car speaker sizes below. Speaker measurements are nominal, so always check the mounting depth, fixing points and vehicle compatibility before ordering.

COMPACT SIZE

87mm Car Speakers

Compact 3.5-inch speakers commonly used in dashboards and selected factory speaker positions.

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4 INCH / 10CM

100mm Car Speakers

Compact speakers suitable for selected dashboard, door and factory mounting locations.

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5.25 INCH / 13CM

130mm Car Speakers

A popular size for front and rear doors where available mounting space is limited.

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6.5 INCH / 16.5CM

165mm Car Speakers

A widely used door-speaker size offering improved output and stronger mid-bass performance.

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OVAL SPEAKER

5×7-Inch Car Speakers

Oval speakers used in selected factory door and rear speaker locations.

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FULLER SOUND

6×9-Inch Car Speakers

Larger oval speakers suitable for parcel shelves, larger doors and custom audio installations.

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8 INCH / 20CM

200mm Car Speakers

Large speakers offering greater cone area for selected factory locations and higher-output systems.

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SPECIALIST SIZES

Other Speaker Sizes

Browse less common round and oval speakers for specialist factory and custom installations.

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BEFORE YOU ORDER

Speaker Size Is Only Part of Compatibility

Check Mounting Depth

A speaker may have the correct diameter but still be too deep for the door, window mechanism or factory enclosure.

Check Fitting Adapters

Factory speakers often use shaped mounting frames. A vehicle-specific adapter may be needed to install a standard aftermarket speaker.

Check Power and Impedance

Match the speakers to the factory stereo, aftermarket head unit or amplifier so the system performs correctly.

Speaker diameter alone does not confirm compatibility. Mounting depth, fixing points, factory connectors, impedance and the need for adapter panels must also be checked.

FREQUENTLY ASKED QUESTIONS

Car Speaker Size FAQs

What size speakers are fitted in my car?

Speaker size varies by vehicle, model, year and speaker position. Use InCarTec’s Search by Vehicle feature or contact us with your vehicle details before ordering.

Are 6.5-inch and 165mm speakers the same size?

They are commonly grouped together, but basket diameter, mounting-hole spacing and installation depth can vary. Always check the listed product dimensions.

Can I fit a larger speaker than the factory size?

Sometimes, but this may require custom fabrication, different adapter rings or additional clearance.

Why do I need speaker adapter rings?

Many factory speakers use vehicle-specific frames and fixing points. Adapter rings provide a secure mounting surface for standard aftermarket speakers.

Does a larger speaker always produce better bass?

A larger cone can move more air, but bass performance also depends on speaker design, installation, door sealing, available power and sound deadening.

How do I measure an existing car speaker?

Check the outside basket diameter, cut-out diameter, mounting-hole spacing and total mounting depth. Do not measure only the visible speaker cone.

Need Help Finding the Correct Speaker Size?

Send us your vehicle make, model, year and the speaker position you want to upgrade. The InCarTec team can help identify suitable speakers and the fitting parts required.

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